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rapist
rappa
Rappahannock
rappel
rappel bolting
rappen
rapper
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rapid eye movement sleep
rap·id eye move·ment sleep


noun 
Definition:
 
physiology 
Full form of  REM sleep
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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